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RECEIVE[ <br /> DROP TUBE CALCULATIONS for OVERFILL FLAPPER VALVE (12,000 GALLON) NOV 3 0 2017 <br /> Top of Riser with Adaptor Removed ENVIRONMENTAL HEALTF <br /> DEPARTMENT <br /> Top of Riser <br /> Upper Drop Tube "A" <br /> Tank Riser Pipe <br /> Top of Tank <br /> «B„ <br /> a <br /> °^ 95%of a <br /> Full Tank <br /> (U.S.T) <br /> Lower Drop Tube <br /> =45° <br /> 51/2" <br /> Bottom of Tank <br /> Measurement Value Description <br /> "A" (Determined at Tank Installation) Distance from the Top of the Riser to the Inside of the Top of the Tank <br /> "B" 7-3/8" (PER TANK CHART) 95% Full Tank Level <br /> "C" (Determined at Tank Installation) Distance from the Top of the Riser to the Bottom of Tank <br /> Calculations <br /> 95%TANK CAPACITY=0.95 x 11,873 GAL.=11,279 GAL. <br /> FLAPPER VALVE HEIGHT ABOVE BOTTOM OF TANK=106-5/8"(PER TANK CHART AT 11,275 GAL.) <br />